摘要
以高牌号无取向硅钢典型成分为对象,通过热力学模拟计算,研究Mn,Al元素变化对平衡析出相的影响规律.结果表明:高牌号无取向硅钢的主要平衡析出相为AlN,FCC#2,MnS,M3 P,M7 C3,M23 C6和渗碳体,FCC#2相是一种Ti(C,N)化物,M7 C3和M23 C6是Mn含量较高的一种化合物.Mn含量增加,MnS固溶析出转变温度大幅升高,当Mn含量较多时,随温度降低M7 C3相会先转变成M5 C2相,再转变成M23 C6相.Al含量增加,Ti(C,N)化物的转变温度降低;AlN固溶析出转变温度升高.Al对MnS,M3 P、M7 C3和M23 C6相的影响较小.
Based on the typical composition of high-grade non-oriented silicon steel,the influence of Mn and Al changes on the equilibrium precipitated phases were studied through thermodynamic simulation calculations.The results showed that the main equilibrium precipitated phases of the high-grade non-oriented silicon steel are AlN,FCC#2,MnS,M3 P,M7 C3,M23 C6 and cementite,FCC#2 phase is a Ti(C,N)compound,and M7 C3 and M23 C6 are compounds with high Mn content.As the Mn content increases,the transition temperature of MnS precipitation increases sharply.When Mn content is high,with the decrease of temperature,the M7 C3 phase will firstly transform into the M5 C2 phase then into the M23 C6 phase.With the increase of Al content,the transition temperature of Ti(C,N)compounds decreases;the AlN precipitation transition temperature increases.the Al content has a smaller effect on the MnS,M3 P,M7 C3,and M23 C6 phases.
作者
庞树芳
李元华
高振宇
陈春梅
李亚东
刘文鹏
PANG Shufang;LI Yuanhua;GAO Zhenyu;CHEN Chunmei;LI Yadong;LIU Wenpeng(Angang Steel Company Limited,Anshan 114021,China)
出处
《电工钢》
2020年第1期35-40,共6页
ELECTRICAL STEEL
关键词
高牌号无取向硅钢
热力学
平衡相
high-grade non-oriented silicon steel
thermodynamics
equilibrium phase
